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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 owners, we have a surprise for you.... :)



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      09-16-2010, 11:58 AM   #67
madmanhiker
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Add me to the list! I just installed the REMUS RACE quads this morning!! Sounds great... need more!! (it's like crack)
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      09-16-2010, 12:11 PM   #68
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Quote:
Originally Posted by ar design View Post
Ill have some cell phone pics up in a few minutes, then I will be boxing this bad boy up and sending it to Matt.

We are working on sourcing a high flow catalytic converter right now

Also, once Matt verifies fitment, downpipes will be available for purchase. And the price will be significantly less than $999, even though fabricating these is as labor intensive as a set of N54 downpipes...

ha! finally! I need one of those bad boys

Also, maybe I'm missing something but as it is a catless setup at the moment how are we gonna deal with the o2 sensors (without procede of jb) ?

Michal
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      09-16-2010, 12:14 PM   #69
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Just get the can tool to clear the codes..
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      09-16-2010, 01:47 PM   #70
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Quote:
Originally Posted by cstavaru View Post
This is not a correct comparison. The combined airflow of the 2 turbos in the N54 is higher than the flow of the single turbo from the N55, as demonstrated by the fact that the N55 turbo cannot hold much extra boost to redline as opposed to the twin turbos in the N54 which can hold plenty of boost to redline (see the Vishnu wastegate duty cycle remarks).
There are people working on that issue right now. If yiu can make 15 psi in the midrange and only make 11 at redline, there is something else keeping the boost down. Only a matter of time til we get around it.

Exhaust flow is still exhaust flow. Wether its it out one turbo or two.
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      09-16-2010, 01:55 PM   #71
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And i have my hands on a can tool from Terry. I will be trying it on both my girls car (N54)and the N55 car.

going to try to set up an appt with EPL next week to hit the dyno and get it dynod stock...see what she puts down. Dans E93 should be accompanying us if it gets back from the dealer in time.

The week after i will be going back with the downpipe (once i confirm fitment) and possibly throw the JB3 on as well. Going to see how much of a difference it makes
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      09-16-2010, 02:04 PM   #72
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Quote:
Originally Posted by Matt@Camber-Toe View Post
There are people working on that issue right now. If yiu can make 15 psi in the midrange and only make 11 at redline, there is something else keeping the boost down. Only a matter of time til we get around it.
The issue is turbine backpressure. This downpipe should make a big difference and let the turbo achieve higher speeds to support the boost at high rpm.

Only a matter of time indeed...
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      09-16-2010, 02:24 PM   #73
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FINALLY!
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      09-16-2010, 02:27 PM   #74
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I am so f**ing excited
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      09-16-2010, 02:34 PM   #75
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That thing is a monster its gunna make the n55 sound amazing
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      09-16-2010, 03:16 PM   #76
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Dp plus bmw pe its going to equal sex
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      09-16-2010, 03:16 PM   #77
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Quote:
Originally Posted by Kevin@AKMotorwerk View Post
will this require removing periodically to clean with steel wool?
Yes, free case of steel wool included.
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      09-16-2010, 03:23 PM   #78
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Yes, free case of steel wool included.
I don't get it
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      09-16-2010, 03:29 PM   #79
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I don't get it
You want to keep your downpipe nice and shiny don't you?
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      09-16-2010, 03:33 PM   #80
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Quote:
Originally Posted by shockin330i View Post
I don't get it
Inside joke

You will never have to remove these to polish em. 100% 304 stainless, and we use high grade 304.... not the cheap junk.
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      09-16-2010, 03:36 PM   #81
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Quote:
Originally Posted by shockin330i View Post
I don't get it
Raceland Dp for 199 bucks stated that you need to periodically clean them with steel wool to keep it shining and prevent rust! Thats the inside joke my friend
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      09-16-2010, 03:46 PM   #82
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Add me to the list! I just installed the REMUS RACE quads this morning!! Sounds great... need more!! (it's like crack)
can't wait to hear this combo!
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      09-16-2010, 03:49 PM   #83
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I figured it was something like that
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      09-16-2010, 03:51 PM   #84
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Looks nice Andrew...Question why did you go with a mounting bracket for the DPs for the N55 and not for the N54 dual dps??
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      09-16-2010, 05:04 PM   #85
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Quote:
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Looks nice Andrew...Question why did you go with a mounting bracket for the DPs for the N55 and not for the N54 dual dps??
The design is quite different on the N55 - a lot more stress is placed on the downpipe from the weight of the cat-back.
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      09-18-2010, 01:06 AM   #86
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wow, i've step'd away for a sec and look what happens
AR makes the N55 Downpipes already.
looks good, emmm..
great work.
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      09-18-2010, 01:09 AM   #87
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wow, i've step'd away for a sec and look what happens
AR makes the N55 Downpipes already.
looks good, emmm..
great work.
You're slacking sir. Already have my tune up and running. I'm looking for 12's baby...
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      09-18-2010, 01:15 AM   #88
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Andrew, it looks incredible!!!
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